The GMC Hummer EV lineup’s efficiency credentials are staggering: an anticipated 0-60 mph time of three.0 or 3.5 seconds in its Ludicrous-like Watts To Freedom (WTF) mode, the diagonal dance enabled by Crab mode and its four-wheel steering, the heavy suspension lifting of Extract mode, and an EPA vary focused at greater than 300 or 350 miles within the Hummer EV SUV or Hummer EV SUT pickup, respectively. 

However for contemporary electrical autos positioned to totally substitute gasoline fashions, the charging time is simply as essential. And what GM is revealing about cost instances for the Hummer EV says one thing a couple of era of Ultium EVs on the best way, all powered by the same large-format pouch cells, co-developed with its manufacturing associate LG Chem and probably organized in a number of completely different configurations. 

2022 GMC Hummer EV

2022 GMC Hummer EV

The SUT, with its considerably bigger 24-module pack (roughly 213 kwh gross capability) afforded by its longer wheelbase, will supply 350-kw DC fast-charging, whereas the SUV, with its 20-module pack (round 178 kwh), will cost at as much as 300 kw. 

What which means is that with a CCS connector from high-power, 800-volt suitable charging {hardware}, the Hummer EV SUT is able to regaining practically 100 miles of vary in 10 minutes. The Hummer EV SUV isn’t far behind, at practically 100 miles of vary in about 12 minutes.

In an interview earlier this week, we requested GMC Hummer EV chief engineer Al Oppenheiser what this implies on the 400-volt CCS charging {hardware} that also occupies many roadside stations. 

400V charging might be speedy, too

The wanting it: The Hummer EV received’t be saddled with a 50-kw price. Oppenheiser stated that in a take a look at automobile he went from 30% cost to 90% cost, on 400-volt {hardware}, in about 45 minutes—a sign its 400-volt energy will peak at 150 kw or increased for a giant portion of the cost curve. 

2022 GMC Hummer EV

2022 GMC Hummer EV

Oppenheiser stated that GM has a patent pending for the best way it minimizes mass within the cooling system, decreasing bulk versus conventional HVAC parts, whereas permitting a few of the benefits of a warmth pump. The system, as with lots of the newest EVs, has the potential to chill the battery pack utilizing refrigerant, when it’s being charged, or to heat them on a chilly morning. 

In a Q&A with the media on Monday, Mike Colville, GM’s senior supervisor of electrical automobile integration, stated that in case your vacation spot is programmed into the navigation system the battery might be preconditioned to the best temperature for charging. 

A charging-savvy journey planner for on- and off-road 

Very quick charging is barely a part of the puzzle, although. Discovering the chargers, and coordinating your route round charging stops, is probably much more essential for quashing vary nervousness. 

2024 GMC Hummer EV SUV

2024 GMC Hummer EV SUV

The workforce behind the Hummer EV acknowledges that homeowners will need to take journeys that mix on-road sections and off-roading, which creates an advanced puzzle solved by a well-known identify: Google. 

“With our Vitality Help app, and a path map that goes with our Google Automotive Companies, you’ll plot your total journey earlier than you set your first mile on the automobile,” stated Oppenheiser.

2024 GMC Hummer EV SUV

2024 GMC Hummer EV SUV

The path map will know the elevation grade, the quantity of rock-crawling, and different components in vitality consumption, he says—all within the curiosity of avoiding vary nervousness within the first place. 

Will GMC Hummer be a part of Rivian and Jeep?

GM hasn’t but revealed whether or not it is going to put money into off-road-focused charging areas like Rivian and Jeep, although. Final yr the corporate introduced a partnership with EVgo that can consequence within the set up of greater than 2,700 DC fast-charging connectors—all powered with 100% renewable vitality—over the following 5 years. Getting a couple of of these on the path to outside getaways sounds lots like Watts To Freedom to us.